HP 8901B Operation And Calibration Manual page 299

Operation Model 8901B
COMMENTS
Relative Measurements
If SINAD is to be displayed relative to a reference, enter the value as a ratio reference using the RATIO
key. (Refer to Ratio on page 3-215.)
SINAD Response Time
A
slower response time can be selected with Special Function 5 . 1 . ' The slow response time improves
measurement readability on unstable or noisy signals whenever display jitter is excessive.
The slow response time for
SINAD
is not available with firmware date codes 234.1985 and below. (To display the firmware
date code, select
42.0
SPCL.)
To order a
ROM
set that contains this special function, contact the nearest HP sales office.
3-204 SINAD